Pioneer PDR-555RW Features, Playback of CD-R, CD-RWand CD discs, Creation of CD-compatiblediscs

FEATURES

This unit can be used to record CD-R (CD recordable) discs or CD-RW (CD rewritable) discs.

Once recorded, a CD-R disc cannot be erased. However, a re- corded CD-RW disc can be erased later.

Both CD-R and CD-RW discs provide the high sound quality and excellent durability that is the hall mark of ordinary prere- corded CDs (compact discs).

Playback of CD-R, CD-RW and CD discs

This recorder can be used to play partially recorded CD-R or CD- RW discs, finalized CD-R or CD-RW discs and ordinary prere- corded CD discs.

Creation of CD-compatible discs

A CD-R disc can be played on any ordinary CD player just like ordinary prerecorded CD discs provided it has been finalized (by recording TOC) after recording.*

CD-RW discs can only be played back on a player specially de- signed to handle CD-RW discs.

Sampling frequency converter

When recording a digital source using 32 kHz or 48 kHz sam- pling frequency such as satellite broadcasting, DAT and DCC, this unit automatically converts the sampling frequency into

44.1kHz which is the sampling frequency used with the CD. However, the digital monitoring signal which is output during recording with this unit is based on the same sampling fre- quency as the recorded source.

Digital-source synchro recording modes

When recording digital signals from a CD, DAT, MD or DCC, the recording on this unit can be started and stopped in syn- chronism with the starting and stopping of the playback of the source component.

A mode for synchro recording of a single track from the above- mentioned sources is available so that edited recording is easy.

Legato-linked conversion

The “Legato-linked conversion” is designed to make musical performance more natural. The signal format limits the fre- quency of the signals recorded on discs at 20 kHz. However, as sounds of nature and musical components of instruments con- tain frequencies above 20 kHz, it cannot be said that the discs contain recordings of the signal waveforms as they were origi- nally. To deal with this problem, the “Legato-linked conver- sion” provides closer musical performance to the original sound by assuming the original signals based on the signals recorded on the disc.

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Build-in Multi-Level ∆Σ (Delta-Sigma) DAC

The multi-level Digal-Analog Converter achieves superior reso- lution compared to the conventional Delta-Sigma DAC, thus producing high conversion accuracy even when jitter is present in the system clock.

1-bit A/D converter

The A/D converter (analog-to-digital converter) of this unit uses the latest 1-bit conversion system. This system provides the following advantages compared to previous systems.

÷Zero-cross distortion does not occur from the principle.

÷Non-linear distortion does not occur throughout the fre- quency band.

÷High accuracy is possible without adjustment.

These advantages preserve the original quality of the music in- cluding low-level signals.

Newly-developed 3-beam differential push- pull pickup

The newly developed 3-beam pickup with differential push-pull system stabilizes operations and reproduces rich medium and low frequencies.

Direct construction with minimized signal path and separated digital and audio

The direct construction reduces cross-interference between signals by achieving a correct signal transfer. It reproduces musical signals with high purity by thoroughly improving the distortion, channel separation and level linearity values. These improvements are not in terms of values at a single point but applied over a wide frequency range.

*Before CD-Rs can be played on ordinary CD players, they must be 'finalized' (a process that fixes the contents of the disc so that no further recording is possible). While most CD players should have no problems with CD-R discs, if the laser pickup is dirty (from prolonged exposure to tobacco smoke, for example), the player may not be able to read some CD-R discs.